1. Kazan State Medical University of the Ministry of Health of Russia;
Republican Clinical Cancer Center, Ministry of Health of the Republic of Tatarstan
2. Republican Clinical Cancer Center, Ministry of Health of the Republic of Tatarstan
3. Kazan State Medical University of the Ministry of Health of Russia;
City Clinical hospital No.7, Ministry of Health of the Republic of Tatarstan
4. Kazan State Medical University of the Ministry of Health of Russia;
Polyclinic No. 20
5. Kazan State Medical University of the Ministry of Health of Russia